Displaying errors associated with hidden field (normally never, but useful during development)

ippisite/ippidb/templatetags/customtags.py

@@ -27,7 +27,11 @@ def bootstrap_core(object):
     if isinstance(object, forms.BoundField):
         field = object
         if isinstance(field.field.widget, forms.HiddenInput):
-            return [field.as_widget(), ]
+            ret.append(field.as_widget())
+            if field.errors:
+                for e in field.errors:
+                    ret.append("""<div class="alert alert-danger">%s: %s</div>""" % (field.name, e,))
+            return ret
         attrs = field.field.widget.attrs
         # get the class specified in the code
         css_classes = set(attrs.get("class", "").split(" "))